synthesis of fer type materials using inorganic gels
Báo cáo hóa học: " Solvothermal synthesis of uniform bismuth nanospheres using poly(N-vinyl-2-pyrrolidone) as a reducing agent" pptx
Ngày tải lên :
21/06/2014, 06:20
... Process of Ministry of Education and School of Chemical Engineering & Pharmacy, Wuhan Institute of Technology, Wuhan, 430073, P R China 2Key Laboratory of Catalysis and Materials Science of the ... http://www.nanoscalereslett.com/content/6/1/66 Page of Figure SEM (a) image of bismuth nanomaterials were obtained when the amount of PVP was 0.310 g (sample 3) SEM image (b) and EDX pattern (e) of bismuth nanomaterials were obtained ... further characterization (sample 1) Other samples of bismuth nanomaterials were also prepared with different amounts of PVP and different solvents using the same methods under identical conditions...
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Báo cáo hóa học: " Synthesis of Glass Nanofibers Using Femtosecond Laser Radiation Under Ambient Condition" pptx
Ngày tải lên :
22/06/2014, 00:20
... images of laser-processed borosilicate glass 123 SEM micrographs of nanofibers generated in borosilicate and silica glass materials using femtosecond laser radiation at a pulse frequency of MHz ... glass surfaces Microraman spectra of the unprocessed substrate and processed nanofibers of silica glass are presented in Fig The intensity of the spectrum of nanofibers in laser-irradiated surfaces ... exterior of the laser-drilled microvias due to pressure gradient in the molten liquid and provide the heads of nanojets which eventually draws the fiber from the melt and because of shorter duration of...
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synthesis of inorganic nanowires by using peptide nanotubes as the templates via biologic recognition
Ngày tải lên :
13/11/2014, 16:27
... imprint of DNA molecules onto the inorganic crystal structures(78) The study of biomineralization offers 19 valuable insights into the scope and nature of materials chemistry at the inorganicorganic ... UNIVERSITY OF NEW YORK ii Abstract SYNTHESIS OF INORGANIC NANOWIRES BY USING PEPTIDE NANOTUBES AS THE TEMPLATES VIA BIOLOGIC RECOGNITION by Lingtao Yu Adviser: Professor Hiroshi Matsui Nanomaterials ... satisfaction of the dissertation requirements for the degree of Doctor of Philosophy January 2006 Prof Hiroshi Matsui Date Chair of Examining Committee January 2006 Prof Gerald Koeppl Date Executive Officer...
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Synthesis and characterization of nanostructured materials using dispersion polymerization
Ngày tải lên :
15/09/2015, 17:10
... enormous amount of credit belongs to a multitude of people for making this research successful First of all, I would like to thank my supervisor, Prof Chan Sze On Hardy of Department of Chemistry ... 0.14 g of FeCl3 Reaction temperature is oC 92 Figure 4.3 TEM images of AgCl@PPy-CS nanoparticles prepared at different reaction conditions: 20 ml of Chitosan (1 wt%, in 0.05 M of HNO3), x g of AgNO3, ... 113 Figure 5.3 TEM images of PPy-CS hollow nanostructures prepared at different reaction conditions: 20 ml of Chitosan (1 wt%, in 0.05 M of HNO3), x g of AgNO3, y ml of pyrrole, where x = 0.3,...
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solvothermal reactions- an original route for the synthesis of novel materials
Ngày tải lên :
20/03/2014, 13:08
... development of solvothermal reactions in Materials Chemistry a specific attention will be given to the synthesis of novel materials and the development of new processes Solvothermal synthesis of novel materials ... functional materials Geo-inspired materials The structure of natural materials can be a source of inspiration for the conception of novel materials Phyllosilicates is a large class of geomaterials ... properties of such solvents Main applications of solvothermal processes Solvothermal reactions have been developed in different scientific domains: ? the synthesis of novel materials (design of materials...
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Báo cáo khoa học: De novo synthesis, uptake and proteolytic processing of lipocalin-type prostaglandin D synthase, b-trace, in the kidneys pptx
Ngày tải lên :
30/03/2014, 01:20
... Lipocalin -type prostaglandin D synthase in kidney N Nagata et al Fig Alignment of the amino acid sequences of monkey and human L-PGDS (A) Amino acid sequence of human L-PGDS was compared with that of ... kidney possibly attenuates the progression of kidney damage In some renal diseases, the increase in the biosynthesis of L-PGDS in the kidney may be a type of adaptation mechanism against kidney 7154 ... injection of hybridoma cells For MAb-5C11 generated in L-PGDS KO mice, IgG antibody was purified from the serum-free medium of hybridoma cultures The immunoglobulin isotype of MAbs was determined using...
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Báo cáo khoa học: Mutational analysis of a type II thioesterase associated with nonribosomal peptide synthesis pdf
Ngày tải lên :
30/03/2014, 13:20
... al (Eur J Biochem 271) using UV spectroscopy (A280) The calculated absorption coefficients of wild -type TEIIsrf and TEIIsrf mutants are very similar The value of the wild -type TEIIsrf (16 860 M)1Æcm)1) ... water; buffer B: 0.1% (v/v) trifluoroacetate in acetonitrile]: holding buffer B constant (10%) for min, followed by a linear gradient to 95% buffer B in and elution of the enzymes at 95% buffer B ... quantification of reaction rates, in the case of the [14C]Pro-S-Ppant-PCP substrate it became obvious that the enzymatic activity of S86C is reduced compared with the wild -type enzyme [17] In the case of...
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Báo cáo khoa học: Synthesis of b-mannosides using the transglycosylation activity of endo-b-mannosidase from Lilium longiflorum pptx
Ngày tải lên :
30/03/2014, 16:20
... FEBS A Sasaki et al Synthesis of b-mannosides using endo-b-mannosidase A Transfer of oligomannose from different glycopeptides to GN2-PA using the transglycosylation activity of endo-b-mannosidase ... (1974) Synthesis of derivatives of the trisaccharide repeating unit of the O-specific polysaccharide from Salmonella anatum Carbohydr Res 33, C5–C7 Shaban MAE & Jeanloz RW (1976) The synthesis of ... protected forms Enzymatic methods of constructing the Manb structure using b-mannosidases or b-mannosyltransferases are attractive alternatives to be applied to the synthesis of oligosaccharides containing...
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Báo cáo khoa học: Kinetic studies on endo-b-galactosidase by a novel colorimetric assay and synthesis of N -acetyllactosamine-repeating oligosaccharide b-glycosides using its transglycosylation activity pptx
Ngày tải lên :
31/03/2014, 07:20
... value of was 31% of that of However, the kcat/Km value of 4, in which Glc had been replaced with GlcNAc, was only 0.9% of that of The same tendency was seen in a comparison of and This was also ... in the presence of 10 mU of the enzyme Colorimetric assay of endo-b-galactosidase activity A mixture containing 0.5 mM of each p-nitrophenyl oligosaccharide b-glycoside and 50 mU of b-D-glucosidase ... specificity of endo-b-galactosidase, parameters of Michaelis–Mententype kinetics for 1–5 were evaluated by a 1/v–1/[S] plot Fig Principle of the colorimetric assay method for endo-b-galactosidase using...
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Synthesis of nano al2o3 dispersion strengthened cu base composite materials by mechanochemical process
Ngày tải lên :
11/04/2014, 17:14
... milling process 43 The synthesis process of materials 44 Picture of compaction mold 44 Picture of hydraulic pressing machine 45 3.6 3.7 4.1 Sintering diagram of Cu-Al2O3 Picture of Linn’s furnace ... to every laboratory in School of Materials Science and Technology, Hanoi University of Science and Technology and all technicians, teachers, professors in School of Materials Science and Technology ... consisting of alternating layers of ferrite and cementite The ferrite phase is soft and ductile, whereas cementite is hard and very brittle The combined mechanical characteristics of the pearlite...
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a novel method for the synthesis of titania nanotubes using
Ngày tải lên :
05/05/2014, 15:26
... Annealing of the materials Fig Experimental setup for anodization of titanium using ultrasonic treatment of nanotubes could be obtained through the sonoelectrochemical method, because the mass transfer ... the diffusion of F− ions and simultaneous effusion of the [TiF6 ]2− ions The faster rate of formation of TiO2 nanotubes using ultrasonic waves can be explained by the faster mobility of the F− ions ... Anodization using ethylene glycol medium The next set of experiments was carried out using ethylene glycol and 0.5 wt% of ammonium fluoride solution Fig shows that the sonoelectrochemical synthesis of...
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rational synthesis of ultrathin n type bi2te3 nanowires with enhanced thermoelectric properties
Ngày tải lên :
06/05/2014, 08:54
... (EDS) analysis is performed on both of these materials, the results of which are shown on the right of the corresponding XRD patterns Indeed, a significant amount of Bi is observed in the nanowires ... compound nanowires For the synthesis of Te nanowires, 20 mL of ethylene glycol is added to a three-neck flask equipped with a standard Schlenk line, followed by adding of 0.2 g of polyvinylpyrrolidone ... that of the bulk materials due to the enhanced phonon scattering at the nanoscale interfaces, which results in a 13% enhancement of the ZT value compared to that of the best commercial n-type...
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rational synthesis of ultrathin n type bi2te3 nanowires with enhanced thermoelectric properties
Ngày tải lên :
06/05/2014, 08:58
... (EDS) analysis is performed on both of these materials, the results of which are shown on the right of the corresponding XRD patterns Indeed, a significant amount of Bi is observed in the nanowires ... compound nanowires For the synthesis of Te nanowires, 20 mL of ethylene glycol is added to a three-neck flask equipped with a standard Schlenk line, followed by adding of 0.2 g of polyvinylpyrrolidone ... that of the bulk materials due to the enhanced phonon scattering at the nanoscale interfaces, which results in a 13% enhancement of the ZT value compared to that of the best commercial n-type...
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Báo cáo toán học: " Facile synthesis of uniform large-sized InP nanocrystal quantum dots using tris(tert-butyldimethylsilyl)phosphine" pptx
Ngày tải lên :
20/06/2014, 20:20
... hexane Synthesis of InP/ZnS For in situ fabrication of InP/ZnS core-shell NQDs, the temperature of the growth solution of InP was lowered after a 10-min growth to 200°C Thirty milligrams of ZDC, ... (In/MA = 1:3) Figure Scheme 1: Synthesis of various phosphorus precursors to Figure One-pot synthesis of core-shells and their optical properties (a) One-pot synthesis of InP with P(SiMe2-tert-Bu)3 ... synthesized using a new P precursor (red-green) Figure UV-Vis absorption spectra of InP NQDs synthesized using various P precursors (a) UV-Vis absorption spectra of InP NQDs synthesized using different...
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Báo cáo hóa học: " A rapid, convenient, solventless green approach for the synthesis of oximes using grindstone chemistry" docx
Ngày tải lên :
20/06/2014, 22:20
... 60-98% yield 90 Page of run might be due to the loss of active sites of the catalyst Conclusions To the best of our knowledge, Bi O has never been used in the synthesis of oximes earlier In conclusion, ... simple yet efficient example of unconventional methodology, which is equally effective for all types of aldehydes and ketones Earlier reports [15,31] of similar type restricted their utility ... effectiveness of Bi2O3 in oxime synthesis (see Scheme 1) under grinding condition is demonstrated using a broad spectrum of aldehydes and ketones with hydroxylamine hydrochloride in the absence of a base...
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Báo cáo hóa học: " Self-propagating high-temperature synthesis of nano-TiCx particles with different shapes by using carbon nano-tube as C source" doc
Ngày tải lên :
21/06/2014, 00:20
... Graduate Innovation Fund of Jilin University Author details Key Laboratory of Automobile Materials, Ministry of Education, People’s Republic of China 2Department of Materials Science and Engineering, ... and sphere-like This shape variation of the TiCx formed in different kinds of the Me liquid environment is believed to relate to the different stoichiometries of the TiC x formed during the combustion ... Institute of Nonferrous Metals, Beijing, China) and Fe powders (> 99.5% purity, approximately 48 μm, Institute of Nonferrous Metals, Beijing, China) The Ti and CNT powders with a molar ratio of 1:1...
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Báo cáo hóa học: " Synthesis of magnetic nanofibers using femtosecond laser material processing in air" ppt
Ngày tải lên :
21/06/2014, 03:20
... onset of self-assembly of the nanoparticle chains (or nanofibers) The laser pulse repetition rate plays a critical role in the formation of nanofibrous like structure Figure shows SEM images of ... magnetic nanofibers The total magnetization of a nanofiber is given by the vectorial sum of all single magnetic moments of the atoms [24] As for the atomic magnetic moments in generated nanofibers, ... analysis of the irradiated surface shows existence of oxygen as shown in Figure which indicates, besides the percentage of oxygen to neodymium-iron-boron, the existence of oxidized magnetic nanofibers...
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Báo cáo hóa học: " Microwave-assisted synthesis of water-dispersed CdTe/CdSe core/shell type II quantum dots" pdf
Ngày tải lên :
21/06/2014, 03:20
... http://www.nanoscalereslett.com/content/6/1/399 Page of Figure Optical performance of CdTe cores and corresponding CdTe/CdSe type II QDs by means of microwave-assisted synthesis The optical performance of a series of original CdTe ... corresponding PL intensity of CdTe/CdSe QDs versus different absorption values of the CdSe precursor solution (b) PL spectra of CdTe/CdSe core/shell QDs synthesized with different [Se2-]/[Cd2+] molar ... intensity This improvement of the photostability of CdTe/CdSe QDs was probably due to the protection of the shell to prevent the oxidization of Te2- on the surface of CdTe QDs, thus retained...
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Báo cáo hóa học: " Scalable synthesis of aligned carbon nanotubes bundles using green natural precursor: neem oil" doc
Ngày tải lên :
21/06/2014, 06:20
... setup for the synthesis of aligned CNTs Page of Figure SEM micrographs of the as-grown ACNTs at 825°C (a, b) The Cross-sectional view of the dense block of the CNTs The complete block of ACNTs’ side-view ... content of hydrocarbon from the decomposition of neem oil The diameters of the ACNTs grown at 775 and 875°C were found to be 40 and 55 nm respectively We have also used only Page of ferrocene for synthesis ... http://www.nanoscalereslett.com/content/6/1/92 Page of Acknowledgements The authors are grateful to Prof C N R Rao, Prof A K Raychaudhary, Prof A K Sood, Prof P M Ajayan, and Prof D P Singh (Vice-Chancellor B.H.U)...
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Báo cáo hóa học: " Aqueous-Phase Synthesis of Silver Nanodiscs and Nanorods in Methyl Cellulose Matrix: Photophysical Study and Simulation of UV–Vis Extinction Spectra Using DDA Method" docx
Ngày tải lên :
21/06/2014, 17:20
... (Fig 1c), obtained by using mM of sodium citrate, shows the presence of only silver nanorods of different aspect ratios (R = 3–7) The histogram of particle distribution of corresponding silver ... 15] Synthesis of nanostructures via simple wet-chemical method is one of the most favoured routes towards the cost-effective large-scale production of nanobuilding blocks Chemical synthesis of ... nanoparticles of different morphologies can be synthesized using seed-mediated growth approach where the microfibril of methyl cellulose (MC) acts as soft-template for the growing particles Formation of...
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